diff --git a/WeChat/Contracts/Tools.php b/WeChat/Contracts/Tools.php
index fda7e90..d0de000 100644
--- a/WeChat/Contracts/Tools.php
+++ b/WeChat/Contracts/Tools.php
@@ -160,9 +160,70 @@ class Tools
      */
     public static function arr2json($data)
     {
-        return preg_replace_callback('/\\\\u([0-9a-f]{4})/i', function ($matches) {
-            return mb_convert_encoding(pack("H*", $matches[1]), "UTF-8", "UCS-2BE");
-        }, ($json = json_encode($data)) == '[]' ? '{}' : $json);
+        $json = json_encode(self::buildEnEmojiData($data), JSON_UNESCAPED_UNICODE);
+        return $json === '[]' ? '{}' : $json;
+    }
+
+    /**
+     * 数组对象Emoji编译处理
+     * @param array $data
+     * @return array
+     */
+    public static function buildEnEmojiData(array $data)
+    {
+        foreach ($data as $key => $value) {
+            if (is_array($value)) {
+                $data[$key] = self::buildEnEmojiData($value);
+            } elseif (is_string($value)) {
+                $data[$key] = self::emojiEncode($value);
+            } else {
+                $data[$key] = $value;
+            }
+        }
+        return $data;
+    }
+
+    /**
+     * 数组对象Emoji反解析处理
+     * @param array $data
+     * @return array
+     */
+    public static function buildDeEmojiData(array $data)
+    {
+        foreach ($data as $key => $value) {
+            if (is_array($value)) {
+                $data[$key] = self::buildDeEmojiData($value);
+            } elseif (is_string($value)) {
+                $data[$key] = self::emojiDecode($value);
+            } else {
+                $data[$key] = $value;
+            }
+        }
+        return $data;
+    }
+
+    /**
+     * Emoji原形转换为String
+     * @param string $content
+     * @return string
+     */
+    public static function emojiEncode($content)
+    {
+        return json_decode(preg_replace_callback("/(\\\u[ed][0-9a-f]{3})/i", function ($string) {
+            return addslashes($string[0]);
+        }, json_encode($content)));
+    }
+
+    /**
+     * Emoji字符串转换为原形
+     * @param string $content
+     * @return string
+     */
+    public static function emojiDecode($content)
+    {
+        return json_decode(preg_replace_callback('/\\\\\\\\/i', function () {
+            return '\\';
+        }, json_encode($content)));
     }
 
     /**